Other names include toxicodendron pubescens and toxicodendron radicans poison. Toxicodendron rydbergii the western poison ivy, is a species of toxicodendron in the cashew family. Eastern poison ivy, along with its sibling western poison ivy toxicodendron rydbergii, is on the noxious weed list for minnesota due to its toxic, rashproducing properties. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Poison ivy toxicodendron radicans cashew family anacardiaceae description. Toxicodendron radicans noun the noun toxicodendron radicans has 1 sense 1. Rhus toxicodendron definition and patient education. It can be found growing in forests, and other wooded areas, usually near streams and rivers. Plants profile for toxicodendron radicans eastern poison ivy. The species is wellknown for causing urushiolinduced contact dermatitis, an itchy, irritating, and sometimes painful rash, in most people who touch it. The website also provides access to a database and images of herbarium specimens found at the university of south florida and other herbaria. Toxicodendron quercifolium synonyms, toxicodendron quercifolium pronunciation, toxicodendron quercifolium translation, english dictionary definition of toxicodendron quercifolium.
Toxicodendron is a genus of flowering plants in the sumac family, anacardiaceae. Toxicodendron toksikodendron, a genus of poisonous plants family anacardiaceae, also known as rhus, with smooth fruits and foliage that contain urushiol, which produces a contact dermatitis rhus dermatitis. This plant is wellknown for its toxicity which can be found in all parts of the plant, producing chemical burns when coming into contact with susceptible people. The whitish berrylike fruits often persist through winter.
The plants image gallery for the united states department of agriculture plants database. Plant database entry for eastern poison ivy toxicodendron radicans subsp. The eastern species of poison ivy, toxicodendron radicans, is found throughout most of the eastern twothirds of the us and in eastern canada. Toxicodendron radicans n a taxonomic species within the family anacardiaceae eastern poison ivy. Toxicodendron radicans ufifas center for aquatic and.
They are sometimes considered as several species of rhus, the sumac genus, but are usually distinguished as toxicodendron radicans poison ivy and poison oak and the larger t. If you if you come into contact with it, it can cause a rash. Toxicodendron radicans, commonly called poison ivy, is the ultimate weed that no one wants. The results can also be downloaded as a csv file unicode utf8 encoding see status, confidence level, source for definitions. Poison ivy, toxicodendron radicans, is usually a vine twining on trees and occasionally an upright bush if there is no support.
Unlike its ubiquitous sibling, however, eastern poison ivy is uncommon in the state, limited to floodplain forests of our easternmost counties from the metro south and. Poison ivy can run along the ground, or grow high into the trees. Kuntze is an accepted name this name is the accepted name of a species in the genus toxicodendron family anacardiaceae. Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is an allergenic asian and eastern north american flowering plant in the genus toxicodendron. Toxicodendron definition at, a free online dictionary with pronunciation, synonyms and translation. All members of the genus produce the skinirritating oil urushiol, which can cause a severe allergic reaction. Alderson, of hull, england, that gentleman first using it as a remedy in paralytic states. Eastern poisonivy toxicodendron radicans a very common plant in most habitats, usually in wetter soils. Poison ivy no references available poison ivy no references available. A large image of toxicodendron radicans eastern poison ivy from the usda plants database. However, it is not a legal authority for statutory or regulatory purposes.
It has much overlap with western poison ivy, toxicodendron rydbergii, especially in the northern climes. Du fresnoy, of france, however, previous to this had employed rhus radicans in paralytic and herpetic disorders. It can be herbaceous, or it can become woody and branching, as in the leftmost picture above. More on eastern poisonivy toxicodendron radicans in wikipedia allergens and plants search enter a full or partial species name to find more information on one of over 1200 potentially allergenic plants. The atlas of florida plants provides a source of information for the distribution of plants within the state and taxonomic information. Common name for the cutaneous eruption rhus dermatitis caused by contact with these species of toxicodendron.
China, ipcn, mesoamericana, missouri, snr, vpa common names. Caterpillars of several species of attractive moths feed on leaves of poisonivy and poison sumac, including beautiful eutelia and eyed paectes. Many members of this family produce chemicals that are irritants to humans, for example toxicodendron. Poison ivy is wellnamed, both for its climbing ivylike vine, and the nature of its oils, to. This is not a forum for general discussion of the articles subject put new text under old text. Rhus toxicodendron is almost universally admitted to have been introduced to the profession, in 1793, by dr. Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a poisonous asian and eastern north american flowering plant that is wellknown for causing urushiolinduced contact dermatitis, an itchy, irritating, and sometimes painful rash in most people who touch it.
Large image for toxicodendron radicans eastern poison ivy. Kuntze eastern poison ivy, poison ivy, poison oak anacardiaceae sumac family synonyms. Click here to start a new topic please sign and date your posts by typing four tildes new to wikipedia. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant. To download the original size of this image, click on the link below. Plant database lady bird johnson wildflower center.
This perennial plant is either a shrub up to 3 tall or a woody vine up to 60 long. It is native to most of canada from the maritimes to british columbia, and most of the contiguous united states except the southeastern states, new jersey, delaware, and california. The new york flora atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. Two of the leaflets form a pair on opposite sides of the leafstalk, while the third leaflet stands by itself at the tip of the leafstalk. The stems are initially light reddish green, but they eventually become brown and woody. It is caused by urushiol, a clear liquid compound in the plants sap. L48 n, can upright, climbing, or trailing shrub that bears small yellowishwhite flower clusters. Rhus radicans definition of rhus radicans by the free.
It is native throughout the united states and much of southern canada in a large variety of locations including dry or wet woodlands, thickets, valleys, clearings, fencerows, roadsides and. Each leaf is made up of three leaflets more or less notched at the edges. Toxicodendron radicans name synonyms toxicodendron glabrum mill. The leaf buds are naked lacking scales and covered with short tawny hairs. Media in category toxicodendron radicans the following 4 files are in this category, out of 4 total. Rhus radicans climbing plant common in eastern and central united states with ternate leaves and greenish flowers followed by white berries. The woody stems are often covered with coarse brown hairs, but sometimes they are hairless. Toxicodendron radicans definition of toxicodendron. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Rhus radicans synonyms, rhus radicans pronunciation, rhus radicans translation, english dictionary definition of rhus radicans. Alternate, trifoliate, 7 to 10 inches long, leaflets are ovate and irregularly toothed, shiny green above, paler below. The record derives from tropicos data supplied on 20120418 which reports it as an accepted name record 0004 with original publication details.
Toxicodendron quercifolium definition of toxicodendron. It contains trees, shrubs and woody vines, including poison ivy, poison oak, and the lacquer tree. Toxicum in latin is poison, whereas dendron is greek for tree, hence, poison tree, or toxicodendron. A north american shrub or vine toxicodendron radicans that has compound leaves with three leaflets, small green flowers, and whitish berries and that causes a. Today this family includes tropical and subtropical trees and lianas, including the cashew nut tree anacardium. Us wildflower eastern poison ivy toxicodendron radicans. Kuntze eastern poison ivy subordinate taxa the plants database includes the following 6 subspecies of toxicodendron radicans. In the united states, the most important members of this family are those of the genus toxicodendron previously classified as in the genus rhus, which include common or northern poison ivy toxicodendron radicans, western poison ivy toxicodendron rydbergii, eastern poison oak toxicodendron toxicarium, western poison oak toxicodendron. Toxicodendron definition of toxicodendron by medical. Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a poisonous asian and north american flowering plant that is well known for causing an itching, irritating, and sometimes painful rash in most people who touch it, caused by urushiol, a clear liquid compound in the plants sap. This is the talk page for discussing improvements to the toxicodendron radicans article. Poison ivy toxicodendron radicans illinois wildflowers. Toxicodendron radicans article about toxicodendron.
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